Diego Fernando TANAKA, Haruo ISHIDA, Morito TSUTSUMI, Naohisa OKAMOTO:
PRIVATE FINANCE FOR ROAD PROJECTS IN DEVELOPING COUNTRIES: IMPROVING TRANSPARENCY THROUGH VFM RISK ASSESSMENT.
Journal of the Eastern Asia Society for Transportation Studies, Vol. 6, pp.3899-3914, 2005
(EASTS Online Journal 05 NO.281: http://www.easts.info/on-line/journal_06.htm
ISHIDA Haruo, FURUYA Hideki, KAI Shin-ichiro and OKAMOTO Naohisa:
Recognition of Traffic Congestions on Expressways and Travel Speed,
Journal of Eastern Asia Society for Transportation Studies, No.4, paper number 2398 (CD-ROM), 2003.10
Haruo ISHIDA, Hiroshi MIURA, Naohisa OKAMOTO:
Sampling Rates for Travel Speed Survey with Car Navigation System,
Proceedings of World Congress on Intelligent Transport System(CD-ROM),2000
[1999年]
Naohisa OKAMOTO, Takao SATO:
Effect of Large Scale Container Terminal Improvement to the Regional/National Economic Development,
Selected Proceedings of the 8th World Conference on Transport Research,
Vol.3,pp.555-568,1999
Naohisa OKAMOTO, Shigeru MORICHI, Tohru NISHIMURA, Tetsuo YAI:
A Study on Regional Difference of Recreational Destination Choice Behavior,
Journal of the Eastern Asia Society for Transportation Studies,
Vol.1,No.1,pp.351-360,1995
Tetsuo YAI, Harutoshi YAMADA, Naohisa OKAMOTO:
Nationwide Recreation Travel Survey in Japan : Outline and Modeling Applicability,
Transportation Research Record,No.1493,pp.29-38,1995